#ifndef TREEMODEL_H
#define TREEMODEL_H

#include <QAbstractItemModel>
#include <QModelIndex>
#include <QVariant>

#include "treeitem.h"

class TreeItem;

class TreeModel : public QAbstractItemModel
{
    Q_OBJECT

public:
    TreeModel(QObject *parent);
    ~TreeModel();

    QVariant data(const QModelIndex &index, int role) const;
    Qt::ItemFlags flags(const QModelIndex &index) const;
    QVariant headerData(int section, Qt::Orientation orientation,
                        int role = Qt::DisplayRole) const;
    QModelIndex index(int row, int column,
                      const QModelIndex &parent = QModelIndex()) const;
    QModelIndex parent(const QModelIndex &index) const;
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount(const QModelIndex &parent = QModelIndex()) const;

    void setupModelData();
    void refresh();
    void clearData();
    int childCount() const;

    // TODO: must be private
    TreeItem *rootItem;

private:
    int mItemCount;

signals:
    void needReloadData();
};

#endif
